IJ51507: SYSTEM CRASH IN XM_BAD_FREE CALLED FROM ASO_THCP_START_STOP_TRC APPLIES TO AIX 7300-02

APAR status

• Closed as program error.

Error description

• ****************************************************************
  * USERS AFFECTED:
  * Systems running the 7300-02 Technology Level with
  * any of the following filesets at or between the given levels:
  * MIN          MAX          FILESET
  * 7.3.2.0      7.3.2.4      bos.mp64
  ****************************************************************
  * PROBLEM DESCRIPTION:
  * System can crash with the following stack trace:
  * Ý0002CCA0¨abend_trap+000000 ()
  * Ý00111F0C¨xm_bad_free+00026C (??, ??, ??, ??)
  * Ý0010E5FC¨xmdbg_do_xmfree_record+00075C
  * (BADC0FFEE0DDF00D, F1000B0230000170,
  *    BADC0FFEE0DDF00D, 00001A9C4C79C60E, 0000000000000002)
  * Ý0010C4F4¨xmfree_frontend+000354 (??, ??, ??)
  * Ý0061CD38¨aso_thcp_start_stop_trc+000158 (??, ??, ??, ??,
  * ??)
  * Ý00003984¨syscall+000244 ()
  * System crash happens within a aso process.
  ****************************************************************
  * RECOMMENDATION:
  * Update to AIX 7300-02-04-2520 or later.
  ****************************************************************
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:
  * Systems running the 7300-02 Technology Level with
  * any of the following filesets at or between the given levels:
  * MIN          MAX          FILESET
  * 7.3.2.0      7.3.2.4      bos.mp64
  ****************************************************************
  * PROBLEM DESCRIPTION:
  * System can crash with the following stack trace:
  *  0002CCA0 abend_trap+000000 ()
  *  00111F0C xm_bad_free+00026C (??, ??, ??, ??)
  *  0010E5FC xmdbg_do_xmfree_record+00075C
  * (BADC0FFEE0DDF00D, F1000B0230000170,
  *    BADC0FFEE0DDF00D, 00001A9C4C79C60E, 0000000000000002)
  *  0010C4F4 xmfree_frontend+000354 (??, ??, ??)
  *  0061CD38 aso_thcp_start_stop_trc+000158 (??, ??, ??, ??,
  * ??)
  *  00003984 syscall+000244 ()
  * System crash happens within a aso process.
  ****************************************************************
  * RECOMMENDATION:
  * Update to AIX 7300-02-04-2520 or later.
  ****************************************************************
  

Problem conclusion

• Using mutex in user space, protecting the simultaneous
  invocation to the kernel code.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IJ53348 IJ53412

Fix information

• Fixed component name

  AIX V7.3

• Fixed component ID

  5765CD300

Applicable component levels